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1.发明授权Detection and filtering of an undesired narrowband signal contribution in a wireless signal receiver 有权在无线信号接收机中对不期望的窄带信号贡献的检测和滤波公开(公告)号：US09008249B2
公开(公告)日：2015-04-14
申请号：US13371311
申请日：2012-02-10
Applicant: Jie Wu , Emilija M. Simic , Timothy Paul Pals , Duong A. Hoang
Inventor： Jie Wu , Emilija M. Simic , Timothy Paul Pals , Duong A. Hoang
CPC classification number: G01S19/21 , H04B1/1036
Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses in a device comprising a receiver to scan a spectral band of a received signal comprising a desired signal contribution to determine whether signal data associated with at least a sub-band of the spectral band further comprises at least one undesired signal contribution. In response to determining that the signal data comprises at least one undesired signal contribution, the mobile station may initiate at least one notch filter to affect the undesired signal contribution in subsequent signal data associated with the received signal.
Abstract translation: 提供了技术，其可以使用包括接收机的各种方法和/或装置来实现，该接收机扫描包括期望信号贡献的接收信号的频谱带，以确定与至少频谱的子带相关联的信号数据 频带还包括至少一个不需要的信号贡献。 响应于确定信号数据包括至少一个不需要的信号贡献，移动台可以启动至少一个陷波滤波器以影响与接收信号相关联的后续信号数据中的不期望的信号贡献。
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公开(公告)号：US08416894B2
公开(公告)日：2013-04-09
申请号：US12471183
申请日：2009-05-22
Applicant: Ashok Bhatia , Dominic Gerard Farmer , Emilija M. Simic , Vishal Agarwal
Inventor： Ashok Bhatia , Dominic Gerard Farmer , Emilija M. Simic , Vishal Agarwal
CPC classification number: G01S19/256 , G01S19/235
Abstract: Methods and apparatus are provided for use in devices operatively enabled to establish timing signal offset data and/or utilize such established offset data.
Abstract translation: 提供的方法和装置用于可操作地使得能够建立定时信号偏移数据和/或利用这种已建立的偏移数据的装置。
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公开(公告)号：US20120154212A1
公开(公告)日：2012-06-21
申请号：US13406291
申请日：2012-02-27
Applicant: Emilija M. Simic , Douglas Neal Rowitch , Sundar Raman
Inventor： Emilija M. Simic , Douglas Neal Rowitch , Sundar Raman
CPC classification number: G01S19/36 , G01S19/24 , H04B2201/70715
Abstract: The subject matter disclosed herein relates to receiving one or more SPS signals at two or more physically separated antennae. In an aspect, signals from the physically separated antennae may be downconverted into complex digital signals that may undergo further processing to improve one or more performance metrics related to position estimation operations, for example.
Abstract translation: 本文公开的主题涉及在两个或更多物理分离的天线处接收一个或多个SPS信号。 在一个方面，来自物理分离的天线的信号可以被下变频成复数的数字信号，例如可以经历进一步的处理以改进与位置估计操作有关的一个或多个性能度量。
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公开(公告)号：US08130145B2
公开(公告)日：2012-03-06
申请号：US12491093
申请日：2009-06-24
Applicant: Emilija M. Simic , Douglas Neal Rowitch , Sundar Raman
Inventor： Emilija M. Simic , Douglas Neal Rowitch , Sundar Raman
IPC: G01S19/36
CPC classification number: G01S19/36 , G01S19/24 , H04B2201/70715
Abstract: The subject matter disclosed herein relates to receiving one or more SPS signals at two or more physically separated antennae. In an aspect, signals from the physically separated antennae may be downconverted into complex digital signals that may undergo further processing to improve one or more performance metrics related to position estimation operations, for example.
Abstract translation: 本文公开的主题涉及在两个或更多物理分离的天线处接收一个或多个SPS信号。 在一个方面，来自物理分离的天线的信号可以被下变频成复数的数字信号，例如可以经历进一步的处理以改进与位置估计操作有关的一个或多个性能度量。
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公开(公告)号：US08503513B2
公开(公告)日：2013-08-06
申请号：US13310535
申请日：2011-12-02
Applicant: Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
Inventor： Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
IPC: H04B1/00
Abstract: The subject matter disclosed herein relates to a system and method for processing a signal received from a satellite positioning system (SPS) in the presence of a multi-tone jammer. In one particular implementation, processing of a signal may be altered in response to detection of one or more conditions.
Abstract translation: 本文公开的主题涉及用于在存在多音调干扰的情况下处理从卫星定位系统（SPS）接收的信号的系统和方法。 在一个具体实现中，响应于一个或多个条件的检测可以改变信号的处理。
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Patent Agency Ranking
公开(公告)号：US08442095B2
公开(公告)日：2013-05-14
申请号：US12139458
申请日：2008-06-14
Applicant: Rizwan Ahmed , Emilija M. Simic
Inventor： Rizwan Ahmed , Emilija M. Simic
IPC: H04B1/69
CPC classification number: H04B1/7077 , G01S19/30 , H04B1/709 , H04B2201/70715
Abstract: Methods and apparatus for code phase processing in a wireless communication device are described herein. A wireless device performs code phase search on a pseudo random code spread signal received over a wireless channel. A correlator correlates the received signal to a plurality of code phases in each of a plurality of frequency hypothesis. A maximum peak and a second peak are determined from the correlation results. Cross correlation processing is performed on the maximum peak and the maximum peak is discarded in favor of the second peak for position processing based on the results of the cross correlation.
Abstract translation: 本文描述了无线通信设备中用于码相位处理的方法和装置。 无线设备对通过无线信道接收的伪随机码扩展信号执行码相搜索。 相关器将接收的信号与多个频率假设中的每一个中的多个码相关联。 根据相关结果确定最大峰值和第二峰值。 基于互相关的结果，对最大峰进行互相关处理，并舍弃最大峰，有利于位置处理的第二峰。
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公开(公告)号：US20120076177A1
公开(公告)日：2012-03-29
申请号：US13310535
申请日：2011-12-02
Applicant: Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
Inventor： Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
IPC: H04B1/707
Abstract: The subject matter disclosed herein relates to a system and method for processing a signal received from a satellite positioning system (SPS) in the presence of a multi-tone jammer. In one particular implementation, processing of a signal may be altered in response to detection of one or more conditions.
Abstract translation: 本文公开的主题涉及用于在存在多音调干扰的情况下处理从卫星定位系统（SPS）接收的信号的系统和方法。 在一个具体实现中，响应于一个或多个条件的检测可以改变信号的处理。
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公开(公告)号：US08135097B2
公开(公告)日：2012-03-13
申请号：US12323208
申请日：2008-11-25
Applicant: Dominic Gerard Farmer , Emilija M. Simic , Jie Wu
Inventor： Dominic Gerard Farmer , Emilija M. Simic , Jie Wu
IPC: H04L27/06
CPC classification number: G01S19/29
Abstract: An apparatus and method for tracking a desired signal by sequentially tracking the desired signal with a variable integration time, performing automatic frequency control of the desired signal, and demodulating the desired signal using offline software. In one aspect, the automatic frequency control is performed using the offline software. In one aspect, the desired signal is from a GPS satellite.
Abstract translation: 一种用于通过以可变积分时间顺序跟踪期望信号来跟踪期望信号的装置和方法，执行所需信号的自动频率控制，以及使用离线软件解调所需信号。 一方面，使用离线软件进行自动频率控制。 在一个方面，期望的信号来自GPS卫星。
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公开(公告)号：US08094702B2
公开(公告)日：2012-01-10
申请号：US12111101
申请日：2008-04-28
Applicant: Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
Inventor： Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
IPC: H04B1/00
Abstract: The subject matter disclosed herein relates to a system and method for processing a signal received from a satellite positioning system (SPS) in the presence of a multi-tone jammer. In one particular implementation, processing of a signal may be altered in response to detection of one or more conditions.
Abstract translation: 本文公开的主题涉及用于在存在多音调干扰的情况下处理从卫星定位系统（SPS）接收的信号的系统和方法。 在一个具体实现中，响应于一个或多个条件的检测可以改变信号的处理。
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公开(公告)号：US20100135365A1
公开(公告)日：2010-06-03
申请号：US12326001
申请日：2008-12-01
Applicant: Shiou-Hung Chen , Grant Alexander Marshall , Emilija M. Simic , Douglas Neal Rowitch , Rayman Wai Pon
Inventor： Shiou-Hung Chen , Grant Alexander Marshall , Emilija M. Simic , Douglas Neal Rowitch , Rayman Wai Pon
CPC classification number: H04B1/7113 , G01S19/22 , H04B2201/70715
Abstract: An apparatus and method for short multipath mitigation. In one aspect the method comprises subtracting a first stronger path from a correlation function to obtain a first residual signal, wherein one component of the first residual signal is a weaker path; applying reconstruction on the first residual signal to obtain a first reconstructed weaker path; subtracting the first reconstructed weaker path from the correlation function to obtain a second residual signal; and applying reconstruction on the second residual signal to obtain a second stronger path. In one aspect, the apparatus includes an antenna for receiving a composite receive RF signal, a receiver front-end for converting the composite receive RF signal into a composite receive digital signal; and a processor for performing signal correlation on the composite receive digital signal to obtain a correlation function and for processing the correlation function to obtain a desired signal. In one aspect, the short multipath is identified by computing a Left Edge Height Ratio Indicator (LEHRI).
Abstract translation: 一种用于短多径减轻的装置和方法。 在一个方面，该方法包括从相关函数中减去第一较强路径以获得第一残差信号，其中第一残差信号的一个分量是较弱的路径; 对第一残差信号应用重建以获得第一重建较弱路径; 从所述相关函数中减去所述第一重建较弱路径以获得第二残差信号; 以及对所述第二残差信号应用重建以获得第二较强路径。 一方面，该装置包括用于接收复合接收RF信号的天线，用于将复合接收RF信号转换成复合接收数字信号的接收机前端; 以及处理器，用于对复合接收数字信号执行信号相关，以获得相关函数，并用于处理相关函数以获得期望的信号。 在一个方面，通过计算左边缘高度比指示符（LEHRI）来识别短多径。
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